Finding the Fourth Proportional to 81,680.83, 112,725.54 and 45,872.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,680.83 : 112,725.54 = 45,872.96 : x
2. Step 2: Convert to fraction form
   81,680.83/112,725.54 = 45,872.96/x
3. Step 3: Cross multiply
   81,680.83x = 112,725.54 × 45,872.96
4. Step 4: Simplify right side
   81,680.83x = 5,171,053,623.77
5. Step 5: Solve for x
   x = 5,171,053,623.77/81,680.83
6. Step 6: Final answer
   x = 63,308.05